ipv6 で Nginx にアクセスする

1. サーバーの ipv6 のアドレスを調べます

$ ip -6 addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 2400:8500:1302:802:133:130:124:81/128 scope global dynamic noprefixroute 

2400:8500:1302:802:133:130:124:81 がアドレスになります。

1. ping で確認

$ ping -6  -c 3 2400:8500:1302:802:133:130:124:81
PING 2400:8500:1302:802:133:130:124:81(2400:8500:1302:802:133:130:124:81) 56 data bytes
64 bytes from 2400:8500:1302:802:133:130:124:81: icmp_seq=1 ttl=63 time=0.693 ms
64 bytes from 2400:8500:1302:802:133:130:124:81: icmp_seq=2 ttl=63 time=0.471 ms
64 bytes from 2400:8500:1302:802:133:130:124:81: icmp_seq=3 ttl=63 time=0.555 ms

1. DNS で AAAA レコードを登録
   onamae.com だと次のようになります。
   

ping で確認

ping -6 -c 3 abc.example.com

>dig で確認

>```text
$ dig -t AAAA abc.example.com +short
2400:8500:1302:802:133:130:124:81

1. Nginx の設定

/etc/nginx/sites-available/default

server {
        listen 80 default_server;
        listen [::]:80 default_server;
（省略）

設定ファイルが正しいことを確認

$ sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

>Nginx を再起動

>```bash
sudo systemctl restart nginx

1. ブラウザーで ipv6 でアクセス

http://[2400:8500:1302:802:133:130:124:81]